Of course, index funds and ETFs with low management fees have much smaller obstacles to overcome, so they tend to have lower tracking errors as a result. (moneysense.ca)
The practice is often criticized for not giving students in lower tracks the chance to move up. (hechingerreport.org)
This sofa has a mid-century cube construction, with lower track arms that end where the back begins. (geekwrapped.com)